Hello, like title says I have stock 94 z28 with k&n cold air kit, would it be worth it to send in and get any type of tune on this car. I am not sure if I will be adding any mods for a while because I am working on my other car but I would like to try to get some gains if possible. please let me know what you think. Allen

 

Yes, you will still see some modest gains as well as some other benefits from a mail-order tune.

 

I'm waiting until i do all the upgrades. Besides the engine mods you can change gears, tires, skip shift, rev and speed limits. It's around $75 for the basic so if it is worth the 5-15 hp increase do it.